Paints & Coatings Selection Guide

Each surface type behaves differently and requires a coating designed for its specific properties. Masonry is porous and often requires breathable coatings, metal requires corrosion protection, wood expands and contracts with moisture, cladding surfaces are often smooth and coated, and roof tiles are exposed to extreme weathering. Selecting a coating without considering these factors can lead to adhesion failure or reduced durability.

Some products are marketed as multi-surface coatings, but performance is typically optimised when using systems designed specifically for each substrate. For example, metal coatings require anti-corrosion properties, while masonry coatings must allow moisture vapour to escape.

Exterior masonry coatings should be breathable, weather-resistant and capable of handling moisture movement within the substrate. This is particularly important for older buildings or areas exposed to damp conditions.

Metal surfaces require coatings that provide corrosion protection and strong adhesion. Direct-to-metal (DTM) systems or primer and topcoat combinations are commonly used depending on the condition of the substrate.

Wood requires coatings that can accommodate movement caused by moisture and temperature changes. Systems typically include primers, undercoats and flexible topcoats to ensure durability.

Cladding often has pre-coated or smooth surfaces such as plastisol or powder-coated panels. These require specialist systems with strong adhesion and compatibility with existing coatings.

External surfaces are exposed to UV, rain, temperature changes and pollutants. Coatings must be selected based on their ability to withstand these conditions. Internal environments typically have lower demands.

Exterior coatings should be weather-resistant, UV stable and flexible enough to handle temperature fluctuations. The correct system depends on the substrate and level of exposure.

Yes. Roof coatings must handle higher levels of weather exposure, water runoff and UV radiation. They are designed differently from wall coatings and should be selected accordingly.

Surfaces exposed to moisture require breathable or moisture-tolerant systems to prevent trapping water behind the coating.

Yes. UV exposure breaks down coatings over time, causing fading, chalking and eventual degradation. UV-resistant coatings are essential for external applications.

The coating may degrade prematurely, lose adhesion or fail to provide adequate protection, leading to increased maintenance and reapplication.

Different coatings offer different performance characteristics. For example, acrylic coatings are versatile and breathable, epoxies offer high durability, and polyurethanes provide flexibility and UV resistance. The correct choice depends on the substrate and environment.

In most cases, yes. Primers improve adhesion, seal porous substrates and provide a stable base for topcoats. Some direct-to-substrate systems exist, but preparation remains critical.

Only if the existing coating is sound and compatible. Failing or incompatible coatings must be removed before applying a new system.

A coating system consists of preparation, primers and topcoats working together. Each layer contributes to adhesion, durability and finish. Treating coatings as a complete system ensures reliable performance.

No. Some coatings may not bond correctly with others or may react negatively. Compatibility must always be considered when recoating.

Choosing based on price or convenience rather than substrate type, environment and performance requirements. This often leads to premature failure and higher long-term costs.